Canrig TM-80 Quick Start Manual

PRODUCT: TM-80 & TM-120, All
Models
SUBJECT:
SERIAL NUMBERS:
DISCUSSION:
RECOMMENDATION:
Sealed Electric Operator for Horizontal Extend/Retract Valve
All
The hydraulic valves supplied with the wrench are equipped with manual handle
lever boxes for manual actuation. With the manual actuators, there is a small gap
in the wrist pin area between the lever box and valve body which can be infiltrated
by contaminants. When this happens, contaminants or corrosion may cause the
valve spool to stick, causing the wrench movement to be less than fluid and may
result in a disparity between the actual wrench position and the wrench position
perceived by the PLC based on feedback from the linear transducer. This is
important in the horizontal positioning of the wrench, where spool sticking may
cause the tong assembly to overshoot or undershoot its pre-programmed location
when operating in Automatic mode. Removing the manual actuator and installing
a sealed electric operator on the horizontal extend/retract valve will result in a
consistently smooth motion regardless of the surface corrosion that may arise
during service.
Follow the below procedures to remove the manual actuator and install a sealed
electric operator. This procedure should only be performed by a trained
technician as it requires recalibration of the PR card and service level access to
the HMI.
Parts Required:
Electric Operator Kit: Canrig P/N AY50806
Tools Required:
4mm hex key wrench
Channel lock pliers
Flat-head screwdriver
1. Fully retract the wrench to the park position.
2. Disconnect power. Follow local tag out and lock out procedures.
3. Open the arm junction box (Figure 1) and locate the horizontal extend/retract
valve coil wires.
PRODUCT BULLETIN
NUMBER: WRENCH
DATE: December 13, 2011
012